AFN's blog

Strangest WA You Will Ever See
By AFN, history, 7 years ago, In English

Hello Codeforces community.

It's been a long time since I last solved a problem on CF, so I decided I'd solve some Div. 2 As and Bs before I start solving Cs.

Anyway, I was solving problem 29B - Traffic Lights, that's when I saw WA on test 12 after submitting it. What's weird isn't the WA in particular, it's the reason; "Can't find file C:\Contesters\Work\invoker-prod\work\codeforces2\b00a58c7139058a693e243e272a449d7\check-aa5f5d80dec38086488721f39ffc5878\run\output.fd0138e687.txt.".

For more information look at my submission below

27794085

As CF doesn't let you send the same code twice, I just added a small comment in my code and re-sent it. Surprise, AC.

You can find my submission with the same code but with an added comment below

27794123

Isn't this considered a fatal problem? Or is it just because it is an old problem so there are issues?

Imagine having a wrong answer verdict like this in a rated contest!

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7 years ago, # |
  Vote: I like it +47 Vote: I do not like it

I believe it's a bug. I've already seen quite a few blog posts about that on Codeforces. MikeMirzayanov, would you mind looking into that issue?

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7 years ago, # |
  Vote: I like it +155 Vote: I do not like it

Hahaha, when I read blog's title I thought "Oh, some blue guy thinks his typical lame bug everyone did in past is strangest WA ever, much entertaining, wow", but actually it's true, it's strangest WA I've ever seen xDD.

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7 years ago, # |
← Rev. 3   Vote: I like it +2 Vote: I do not like it

hi

it wasn't strange for me because i had same problem in another question too...

and i resubmitted my answer and then i got accepted

here is my wrong answer link

and my accepted link

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7 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Strangest compile error ??

See this

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